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v3.26.1

Revenue from Contracts with Customers - Narrative (Details) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 USD ($) project | Jun. 30, 2025 USD ($) project | Jun. 30, 2026 USD ($) project | Jun. 30, 2025 USD ($) project | Dec. 31, 2025 USD ($)
Property, Plant, and Equipment [Line Items] |  |  |  |  |
Term of revenue contracts |  |  | less than two years |  |
Revenue recognized | $ 4.8 | $ 8.8 | $ 14.2 | $ 36.7 |
Net amount of unresolved change orders and claims | $ 16.4 |  | $ 16.4 |  | $ 13.6
Number of projects with write down | project | 0 | 0 | 0 | 0 |
Number of projects with write ups | project | 0 | 0 | 0 | 0 |
Revision amount for gross profit impact on contract estimates (more than) | $ 1.0 | $ 1.0 | $ 1.0 | $ 1.0 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 |  |  |  |  |
Property, Plant, and Equipment [Line Items] |  |  |  |  |
Revenue, remaining performance obligations, expected timing of satisfaction, period | 24 months |  | 24 months |  |
ODR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01 |  |  |  |  |
Property, Plant, and Equipment [Line Items] |  |  |  |  |
Remaining performance obligations, amount | $ 263.2 |  | $ 263.2 |  |
Revenue, remaining performance obligations, percentage | 69.00% |  | 69.00% |  |
Revenue, remaining performance obligations, expected timing of satisfaction, period | 6 months |  | 6 months |  |
ODR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 |  |  |  |  |
Property, Plant, and Equipment [Line Items] |  |  |  |  |
Revenue, remaining performance obligations, percentage | 33.00% |  | 33.00% |  |
GCR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01 |  |  |  |  |
Property, Plant, and Equipment [Line Items] |  |  |  |  |
Remaining performance obligations, amount | $ 200.1 |  | $ 200.1 |  |
Revenue, remaining performance obligations, percentage | 57.00% |  | 57.00% |  |
Revenue, remaining performance obligations, expected timing of satisfaction, period | 6 months |  | 6 months |  |
GCR | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 |  |  |  |  |
Property, Plant, and Equipment [Line Items] |  |  |  |  |
Revenue, remaining performance obligations, percentage | 17.00% |  | 17.00% |  |

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